A microwave radiation-accelerated ionic liquid pretreatment (MRAILP) was developed to enhance extractionof patchouli alcohol from Pogostemon cablin. 1-N-butyl-3-methylimidazolium chloride ([C4mim]Cl)was selected as microwave absorbing and cellulose dissolution medium and microwave was appliedto accelerate sample dissolution. The conditions of MRAILP including particle size, solvent, microwavepretreatment time and power and the ratio of ionic liquid (IL) to sample were optimized. Under the optimizedconditions, the extraction yield of patchouli alcohol by the MRAILP was 1.94%, which has increasedby 166% compared with microwave-assisted extraction. The recovery was in the range of 95.71'103.7%with relative standard deviation lower than 3.0%. It was a novel alternative extraction method for thefast extraction and determination of patchouli alcohol from Pogostemon cablin.
|Number of pages||5|
|Journal||Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences|
|Publication status||Published - Nov 2011|